[Tropical] Hurricane Local Statement
EMWIN Server
emwin at nashvilleweather.net
Sun Sep 13 05:23:29 CDT 2020
WTUS84 KLIX 131023
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LAZ034>037-039-040-046>050-056>072-MSZ068>071-077-080>082-131830-
Tropical Storm Sally Local Statement Advisory Number 7
National Weather Service New Orleans LA AL192020
523 AM CDT Sun Sep 13 2020
This product covers Southeast Louisiana and South Mississippi
...Hurricane and Storm Surge Warnings Now In Effect...
NEW INFORMATION
---------------
* CHANGES TO WATCHES AND WARNINGS:
- The Hurricane Watch has been upgraded to a Hurricane Warning
and a Storm Surge Warning have been issued for Lower Jefferson
- A Storm Surge Warning has been issued and a Hurricane Watch has
been issued for Lower Lafourche
- The Hurricane Watch has been upgraded to a Hurricane Warning
for Ascension, Pearl River, St. James, and Washington
- The Hurricane Watch has been upgraded to a Hurricane Warning
and the Storm Surge Watch has been upgraded to a Storm Surge
Warning for Hancock, Harrison, Livingston, Lower Plaquemines,
Lower St. Bernard, Orleans, Southern Tangipahoa, St. Charles,
St. John The Baptist, St. Tammany, Upper Jefferson, Upper
Plaquemines, and Upper St. Bernard
- A Hurricane Watch has been issued for Assumption, Lower
Terrebonne, Upper Lafourche, and Upper Terrebonne
- The Storm Surge Watch has been upgraded to a Storm Surge
Warning and a Tropical Storm Warning have been issued for
Jackson
- The Tropical Storm Watch has been upgraded to a Tropical Storm
Warning for Northern Tangipahoa, Pike, St. Helena, and Walthall
* CURRENT WATCHES AND WARNINGS:
- A Storm Surge Warning and Hurricane Watch are in effect for
Lower Lafourche
- A Hurricane Warning is in effect for Ascension, Pearl River,
St. James, and Washington
- A Storm Surge Warning and Hurricane Warning are in effect for
Hancock, Harrison, Livingston, Lower Jefferson, Lower
Plaquemines, Lower St. Bernard, Orleans, Southern Tangipahoa,
St. Charles, St. John The Baptist, St. Tammany, Upper
Jefferson, Upper Plaquemines, and Upper St. Bernard
- A Hurricane Watch is in effect for Assumption, Lower
Terrebonne, Upper Lafourche, and Upper Terrebonne
- A Storm Surge Warning, Tropical Storm Warning, and Hurricane
Watch are in effect for Jackson
- A Tropical Storm Warning is in effect for Northern Tangipahoa,
Pike, St. Helena, and Walthall
* STORM INFORMATION:
- About 430 miles east-southeast of New Orleans LA or about 400
miles east-southeast of Grand Isle LA
- 27.0N 84.0W
- Storm Intensity 50 mph
- Movement West-northwest or 300 degrees at 13 mph
SITUATION OVERVIEW
------------------
Tropical Storm Sally continues to pull away from the lower Florida
coast into the open eastern Gulf of Mexico. Sally is expected to move
in a general west-northwest direction through Monday night, now
expected to make landfall along the southeast Louisiana coast
overnight Monday or early Tuesday. Tropical Storm Sally is now
forecast to intensify to a Category 2 hurricane prior to landfall.
Life threatening storm surge, torrential rainfall, and damaging winds
is expected to move into the area late Monday and continue for the
better part of Tuesday before improving Wednesday morning.
POTENTIAL IMPACTS
-----------------
* SURGE:
Protect against life-threatening surge having possible devastating
impacts across the coast from the mouth of the Mississippi River
to Ocean Springs. Potential impacts in this area include:
- Widespread deep inundation, with storm surge flooding greatly
accentuated by powerful battering waves. Structural damage to
buildings, with many washing away. Damage greatly compounded
from considerable floating debris. Locations may be
uninhabitable for an extended period.
- Near-shore escape routes and secondary roads washed out or
severely flooded. Flood control systems and barriers may become
stressed.
- Extreme beach erosion. New shoreline cuts possible.
- Massive damage to marinas, docks, boardwalks, and piers.
Numerous small craft broken away from moorings with many lifted
onshore and stranded.
Also, protect against life-threatening surge having possible
significant to extensive impacts across the tidal lakes,east of
Ocean Springs to the Mississippi Alabama border, and the mouth of the
Mississippi River to Port Fourchon.
Also, protect against locally hazardous surge having possible limited
impacts across Port Fourchon to Morgan City.
* FLOODING RAIN:
Protect against life-threatening rainfall flooding having possible
extensive impacts across coastal Mississippi west to I-55. This includes
the New Orleans metro. Potential impacts include:
- Major rainfall flooding may prompt many evacuations and rescues.
- Rivers and tributaries may rapidly overflow their banks in
multiple places. Small streams, creeks, canals, and ditches may
become dangerous rivers. Flood control systems and barriers may
become stressed.
- Flood waters can enter many structures within multiple
communities, some structures becoming uninhabitable or washed
away. Many places where flood waters may cover escape routes.
Streets and parking lots become rivers of moving water with
underpasses submerged. Driving conditions become dangerous.
Many road and bridge closures with some weakened or washed out.
Protect against dangerous rainfall flooding having possible limited
to significant impacts west of I-55.
* WIND:
Protect against life-threatening wind having possible extensive
impacts south of Lake Pontchartrain. Potential impacts in this area
include:
- Considerable roof damage to sturdy buildings, with some having
window, door, and garage door failures leading to structural
damage. Mobile homes severely damaged, with some destroyed.
Damage accentuated by airborne projectiles. Locations may be
uninhabitable for weeks.
- Many large trees snapped or uprooted along with fences and
roadway signs blown over.
- Some roads impassable from large debris, and more within urban
or heavily wooded places. Several bridges, causeways, and
access routes impassable.
- Large areas with power and communications outages.
Also, protect against dangerous wind having possible limited to
significant impacts across |across the rest of southeast Louisiana
and coastal Mississippi.
* TORNADOES:
Protect against a tornado event having possible limited impacts
across coastal . Potential impacts include:
- The occurrence of isolated tornadoes can hinder the execution
of emergency plans during tropical events.
- A few places may experience tornado damage, along with power
and communications disruptions.
- Locations could realize roofs peeled off buildings, chimneys
toppled, mobile homes pushed off foundations or overturned,
large tree tops and branches snapped off, shallow-rooted trees
knocked over, moving vehicles blown off roads, and small boats
pulled from moorings.
Elsewhere across Southeast Louisiana and South Mississippi, little to
no impact is anticipated.
PRECAUTIONARY/PREPAREDNESS ACTIONS
----------------------------------
* EVACUATIONS:
Listen to local official for recommended preparedness actions,
including possible evacuation. If ordered to evacuate, do so
immediately.
For those not under evacuation orders, assess the risk from wind,
falling trees, and flooding at your location. If you decide to move,
relocate to a safer location nearby. If you do not relocate, help keep
roadways open for those under evacuation orders.
If evacuating, leave with a destination in mind and allow extra time
to get there. Take your emergency supplies kit. Gas up your vehicle
ahead of time. Let others know where you are going prior to
departure.
* OTHER PREPAREDNESS INFORMATION:
Now is the time to complete all preparations to protect life and
property in accordance with your emergency plan. Ensure you are in a
safe location before the onset of strong winds or possible flooding.
If you are relocating to safe shelter, leave as early as possible.
Allow extra time to reach your destination. Many roads and bridges
will be closed once strong winds arrive. Check the latest weather
forecast before departing and drive with caution.
If heading to a community shelter, become familiar with the shelter
rules before arrival, especially if you have special needs or have
pets. Take essential items with you from your Emergency Supplies Kit.
Failure to adequately shelter may result in serious injury or loss of
life. Always heed the advice of local officials and comply with any
orders that are issued. Remember, during the storm 9 1 1 Emergency
Services may not be able to immediately respond if conditions are
unsafe. This should be a big factor in your decision making.
Keep cell phones well charged. Cell phone chargers for automobiles
can be helpful, but be aware of your risk for deadly carbon monoxide
poisoning if your car is left idling in a garage or other poorly
ventilated area.
It is important to remain calm, informed, and focused during an
emergency. Be patient and helpful with those you encounter.
If you are a visitor, be sure to know the name of the city or town in
which you are staying and the name of the county or parish in which
it resides. Listen for these locations in local news updates. Pay
attention for instructions from local authorities.
Storm surge is the leading killer associated with tropical storms and
hurricanes! Make sure you are in a safe area away from the surge
zone. Even if you are not in a surge-prone area, you could find
yourself cutoff by flood waters during and after the storm. Heed
evacuation orders issued by the local authorities.
If in a place that is vulnerable to high wind, such as near large
trees, a manufactured home, upper floors of a high-rise building, or
on a boat, consider moving to a safer shelter before the onset of
strong winds or flooding.
Closely monitor weather.gov, NOAA Weather radio or local news outlets
for official storm information. Be ready to adapt to possible changes
to the forecast. Ensure you have multiple ways to receive weather
warnings.
* ADDITIONAL SOURCES OF INFORMATION:
- For information on appropriate preparations see ready.gov
- For information on creating an emergency plan see getagameplan.org
- For additional disaster preparedness information see redcross.org
NEXT UPDATE
-----------
The next local statement will be issued by the National Weather
Service in New Orleans LA around 11 AM CDT, or sooner if conditions
warrant.
$$
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